tight case against vladimir putin, against russia. they don't want there to be any questions in the final analysis. you heard president obama over and over again call for an international investigation. take a listen to a little bit more of what he had to say yesterday. >> we know at least one american citizen was killed. our thoughts and prayers are with his family for terrible loss. this was a global tragedy. an asian airliner was destroyed in european skies killed with citizens from many countries. so there has to be a credible international investigation into what happened. >> so, alex you hear him putting the focus and emphasis on the fact that this is a global crisis. that is why an international investigation is so necessary. as you mentioned at the top, president obama is at camp david over the weekend. i am told he will be reaching out to foreign counterparts as he continues to stay updated on this investigation. alex. >> thank you so much for that. >> thank you. >> the 298 people on board that flight came from 12 nations, th